Page break after avoid

[jdus]

Respect page-break-after-avoid of previous element(s), when pushing floats to the next page.

[SimonSapin]

This should use last_in_flow_child and block_level_page_break instead of new_children[-1].style.page_break_after. Other than that, looks good!

[jdus]

But then I will have to update last_in_flow_child myself, like this:

for previous_child in reversed(new_children):
    if previous_child.is_in_normal_flow():
        last_in_flow_child = previous_child
        break
if new_children and block_level_page_break(
        last_in_flow_child,
        child
    ) == 'avoid':
    result = find_earlier_page_break(
        new_children, absolute_boxes, fixed_boxes)
    if result:
        new_children, resume_at = result
        break
resume_at = (index, None)
break

Because at this point last_in_flow_child == child, which is the "current" element, not the previous.

[SimonSapin]

Ok, maybe not last_in_flow_child if it’s not what you need, but still block_level_page_break() in order to check for page-break-before in addition to page-break-after, and look not only at the two sibling elements but also their last/first child, recursively.

[SimonSapin]

Look good. Merged, thanks! (By the way, please comment when you push new commits, as I do not get notified otherwise.)